The K-Line planers are probably the simplest owwm to work on. I am not very mechanically oriented but I found the restoration mostly common sense decision making. I would suggest that you take reference photos during the disassembly process. You will use them.

Take the sheet metal chip breaker off the top and remove the 4 compression spring screws and springs.

Just so you don’t get cut, remove the knives and back up plates from the cutterhead.

Disassemble the handwheel, cross shaft and 2 miter gears from the base.
You can see in the above photo there are 8 bolts holding the upper castings and parts to the base. Remove these and carefully tap out the 4 guide pins holding the sides to the base (shown between each pair of nuts). That will give you access to the table and 2 table guides. Turn the large table adjusting screw by hand and the table should slide up and off the guides. Tap out the 2 guides from the bottom of the base. Use scotch brite to clean out the 2 guide holes in the table. Scotch brite and polish the guides nice and shiny and coat with paste wax when you put the planer back together. The smoother these 2 guides, the easier the table will adjust.

Take off the gear side cover casting and remove the 2 feed roller gears. The 2 gears are held with set screws. These will sometimes be stuck from old grease or rust. Try PB Blaster or Kroil to help loosen then if needed. Once the gears are removed, use a rubber mallet to separate the 2 side castings, cutterhead and feed rollers. There will be a screw holding the gear side bearing you will need to remove first.

Check the in and outfeed roller bushings. These get pretty chewed up over the years. Replace them if needed.

That’s the basic break down. Take some time to remove all rust and gunk. Assemble everything in roughly the same order. Grease the feed roller gears. The handwheel/miter gear assembly are adjusted by the seat of your pants method. If the two miter gears are making a grinding sound/feel when you turn the handwheel, you will need to adjust the gears slightly to get them running smooth. Lightly grease the gears.